Events

Past Event

AMO-QIS Seminar: Trevor Wright

April 21, 2023
12:00 PM - 1:00 PM
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“A New Bound on the Electron's Electric Dipole Moment” 

The Standard Model cannot explain the dominance of matter over anti-matter in our universe, which indicates the existence of undiscovered time-reversal (T) symmetry violation.  Proposed particle physics theories predict new particles that violate T-symmetry, which generically induce an electric dipole moment in the electron (eEDM).  I will present the most precise measurement of the eEDM to date using electrons confined inside molecular ions, subject to a huge intra-molecular electric field, and evolving coherently for up to three seconds.  Our result is consistent with zero and improves on the previous upper bound of the eEDM by a factor of about 2.4.